timberlake



M; H. TIMBERLAKE.

(No Model.)

PUMP.

Patented May 29, 1888.

ms .w

MAHLoN H. TIMBERLAKE,

OF LAFAYETTE, INDIANA.

PUNI PQ SPECIFICATION forming part of Letters Patent No. 383,780, datedMay 29, 1888.

Application ilcd July 15), i887. Serial No. 244,747. (No model) l To allwhom it may concern.-

Be it known that I, MAHLON H. Tri/inne LAKE, a citizen of the UnitedStates, residing at Lafayette, in the county of Tippecanoe and State ofIndiana, have invented certain new and useful Iniprovementsin Pumps; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and

'to the letters and figures of reference marked thereon, which form apart of this specification.

My invention relates to improvements in pumps, and has reference moreparticularly to wooden pumps.

It has for its object, primarily, to provide an inner lining to thatportion of the pump in which the plunger works, the lining being of suchmaterial and construction, as will hereinafter more fully and at largeappear, that the lining will be securely held within the wooden cylinderwithout liability to accidentally pull out, and will not become loose soas to seriously interfere with the working of the pump. To theaccomplishment of such objects so generally stated, the invention willbe hereinafter fully described, and then endeavored to be specificallydelined by the claims, reference being had to the accompanying drawings, forming a part hereof.

Figure l is a side view, with lower part of pump-stock broken away toshow application of lining, which is illustrated in section. Fig. 2 is aperspective of lining, on an enlarged scale, from Fig. 1, with partbroken away. Fig. 3 is a perspective of lower part of lining in section,showing preferred application of valve-seat.

In the drawings, the letter A designates a pump-stock, in which thelining is tted. The lining consists of a tube, B, formed of somesuitable thin or sheet non-corrodible metalsay, preferably, such asbrass or copper-which will be spun or otherwise formed, so aspreferablyto be seamless. This tube is secured at its lower end to a'metallic tube, C, preferably of cast metal, and whichis made taperingon its exterior at its lower end, as shown at D, and may taper on theinside, but is preferably straight therein. The connection between thesheet-metal tube and casting is formed by making a recess or shoulder,a, in any suitable way on the interior of the casting, which shouldermay not onl y form a seat for the sheetmetal tube, but principallyserves to bring the inner faces of the sheet-metal tube and castingilush with each other, so that there will be no obstruction to passingthe sucker or plunger E into the cylinder from the bottom ofthe pump orto the reciprocation of the plunger past the joint, if from any causesuch shouldbe necessary. Thefastening of the sheet-metal tube to thecasting can be by any suitable means* say, made either by screw-threads,by brazing or soldering, or by rivets b, or otherwise. By thusconnecting the sheet or thin metal tube constituting the lining to theoast-iron or heavy metal tube at the base the lining will be held inplace within the pump stock by the casting, so that being held by othermeans than direct connection to the wood of the stock there is not theliability of the lining becoming loosev from its connection bytheswelling ofthe wood, the attachment to the stock being through thecasting and not the lining proper. The casting being tapering in formand of stouter and more rigid material than thelining proper,andconsequently not so compressible, if it should become at all loose inits connection to the Woodstock, the slack or looseness can be taken upby a few blows on the top of the stock, which will wedge the castingfarther into the stock, and thus closely and rigidly unite the parts.The advantage, consequently, of thus uniting the sheet-metal tube andcasting is that there is obtained a non-breakable and noncor rodiblelining, and one in which the friction and abrasion is the minimum, andwhich is applied and held firmly to its place by merely driving thestock down onto the rigid taper ing casting. This forms a practicallining for wooden pumps free from the objections that could be urgedagainsta lining formed of either without the other.

The casting is formed on its exterior with any desired number of spurs,F, which engage with the wooden interior of the pump-stock, and thushold the cast-ing and wooden stock together, so that the metal portioncannot drop from the stock when the latter swells, nor when the pump isbeing lifted from the well.

The advantage of having the exterior of the IOC) casting tapering isthat it and the stock can be joined together or their connectiontightened by simply giving blows on the stock, which would be preventedif there was a bead or flange on the lower part of the casting. Byhaving the shoulder or recess on the interior instead of exterior theinner faces of the casting and lining are broughtflush with each other,for the purposes before mentioned. The wooden tubing G, which extendsdown into the well, 'is secured within the casting by simply driving orwedgiug it into the casting.

The valve H may be attached to the upper end of the wooden tube, asshown in Fig. l; but I prefer to make the valveseat I, as shown in Fig.3, separate from other parts, and securing it within the lining or thecasting part thereof by means of a packing-ring, J, of suitablematerial, fitted into a groove, K, formed in the interior of the lining.This packing is suitably secured to the seat I, say, by having thepacking tted into a groove, L, formed in the seat. 'Ihe valve-seat,which is made of metal or other suitable material, may have an annulargroove, c, formed in its face under the valve H.

By the construction and mode of application of the valve described thevalve can be easily placed in position and removed without taking outthe lining of the pump and readily replaced. The packing expands andfills the groove K, so as to prevent the valve lbeing drawn out bysuction, and yet it permits the seat to be removed without difficultywhenever necessary'.

Of course changes may be made in the parts Without departing from thespirit of my invention, and still my invention as described be employed,and therefore I wish it expressly understood that I do not confinemyself to cX- act details of construction.

Having described myinvention and set forth its merits, what I claimis- 1. As an article of manufacture, a lining for a pump-cylinder,composed of a hollow casting formed with a taper to enable it to take upswelling in the pump-cylinder and a sheetmetal tube secured to saidcasting, substantially asand for the purposes set forth.

2. As an article of manufacture, a lining for a pump-cylinder, composedof a hollow casting provided with spurs on its exterior )and formed witha taper to enable it to take up swelling in the pump-cylinder, and asheetmetal tube secured to said casting, the inner faces of the tube andcasting at the joint being substantially flush with each other,substantially as and for the purposes set forth.

3. Ihe combination, with the hollow tapering casting provided with spurson its exterior, of the sheet-metal tube secured to the casting, theinner faces of the casting and tube at the joint between the two beingsubstantially ush with cach other, substantially as and for the purposesset forth.

4. rlhe combination, with the tapering casting formed with the spurs andhaving the sheet-metal tube secured thereto, of the pumpstock fittingaround said tube and casting and secured to the latter by its taper andspurs, and the well-tubing fitting inside the casting, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

MAHLON H. TIMBERLAKE.

Vitnesses:

DANIEL XV. MOORE, GEo. W. MAYO.

